EnumerableExtensionsTrySetElementAt(IEnumerable, Int32, Object, Boolean, Boolean) Method

Tries to set the specified item at the specified index in the collection.


Namespace: KGySoft.CoreLibraries
Assembly: KGySoft.CoreLibraries (in KGySoft.CoreLibraries.dll) Version: 8.2.0
public static bool TrySetElementAt(
	this IEnumerable collection,
	int index,
	Object? item,
	bool checkReadOnlyAndBounds = true,
	bool throwError = true


collection  IEnumerable
The collection to set the item in.
index  Int32
The zero-based index at which item should be set.
item  Object
The item to be set.
checkReadOnlyAndBounds  Boolean  (Optional)
to return if the collection is read-only or the index is invalid; to attempt setting the element without checking the read-only state and bounds. This parameter is optional.
Default value: .
throwError  Boolean  (Optional)
to forward any exception thrown by a found setting member; to suppress the exceptions thrown by the found setting member and return on failure. This parameter is optional.
Default value: .

Return Value

if a setting member could be successfully called; if such member was not found, or checkReadOnlyAndBounds is and the collection was read-only, or throwError is and the setting member threw an exception.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerable. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).


The item can be set in the collection if that is either an IList or IListT implementation.


If it is known that the collection implements only the supported generic IListT interface, then for better performance use the generic TrySetElementAt<T> overload if possible.


This method returns also for multidimensional arrays.

See Also